Electro-magnetic speed-register for ships  logs



2 Sheets-Sheet 1.

(No Model.)

B. FAYMONVILLE.

' ELECTRO MAGNETIC SPEED REGISTER TOR SHIPS LOGS.

Patented July 28, 1885.

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B. PAYMONVILLE. ELECTRO MAGNETIC SPEED EEGISTEE EOE SHIEE LOGS. No. 323,134.

Patented July 2,8, 1885.

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BERNARD FAYMONVILLE, OF SAN FRANCISCO, CALIFORNIA.

EQECIFICATION forming part; of Letters Patent No. 323,134, dated July 28, 1885.

Application filed April 16, 1885.

(No model.)

ment in Electro-Magnetic Speed-Registers;

and I hereby declare the following to be a full, clear, and exact description of the same.

My invention relates to a speed-register the registering of which is produced by an electro-magnetic apparatus, which will be more fully explained by reference to the accompanying drawings. in which- Figure l is a longitudinal section of the speed-indicator, showing my attachment. Fig. 2 is a view of the mechanism for registering. Fig. 3 is an end view of the indicator, with a portion brok en away to show the interior construction. Fig. 4 is an enlarged view of the magnet-armature and wheel. Figs. 5, 6, and 7 are views of the indicating mechanism.

A is an exterior cylindrical case having propeller-shaped wings or vanes B secured to it, so that when the apparatus is drawn rapidly through the wat-er the propeller-Vance will cause the cylinder to revolve about a stationary shaft or axis, C, by which it is supported. A second cylinder, D, is fitted to revolve inside ofthe cylinder A, and between it and the supporting-axis C, and for the purpose of Iny invention it is desirable that this interior cylinder, which is driven from the exterior one, should revolve at a speed considerably less than that of the outer cylinder. In order to effect this, a pinion, E, is fixed to the head F of the outer cylinder by a stud or other fastening. A secondary gear-wheel, G, is mounted upon a stud which secures it to the head I-I of the shaft C, about which the cylinders revolve. The interior ofthe tube D has a gearing formed at its outer endl as shown at I, and this meshes with the teeth of the pinion G, which revolves loosely upon its supporting-stud, so that as the outer cylinder, A, revolves it communicates -motion through the pinion E and gears G and I to the interior cylinder, D, which thus moves at a comparatively low rate of speed. The supporting-shaft C, with its bearings II and H, about which the cylinders revolve, and the interior cylinder, D, are made of some non-conducting material. Holes are made through the central shaft ear WV as shown in Fin'. 5.

longitudinally, and are separated from each other so that wires J may pass through them from the exterior to any suitable point within the length of the tube. These wires are bent outward and have metallic shoes or plates K upon their outer ends, and the cylinder D has a metal plate, L, fixed in one side of it, so that whenever this plate is brought around by the revolution of the cylinder D it comes in line with the plates K on the ends of the wires J, and makes a metallic connection between them for an instant. These wires extend outwardly, and in the present case the device with which they are connected is represented as a rotating log, which is used to indicate speed of a vessel through thewater by being towed behind the vessel as the latter moves, the vanes or wings Bcausing the casing to revolve as before described,theinnershaft remaining stationary. These wires, which are insulated from each other, may pass through a hemp or other rope, which relieves them of strain, and are connected in the usual manner with a battery at M and an electro-magnetic coil at N.

O is an armature, which, when the connection is made by the rotations of the cylinder D, will 'be drawn downward by the action of the electro-magnet and will be released again as soon as the current ceases. This armature is supported upon the end of an arm, I?, the opposite end of which may have a suitable fulcrum, and it may have a spring by which,

when released from the attraction of the magnet, it will be thrown upward so as to carry the armature away from the magnet. A small pawl, Q, is fixed to the lever-arm I? at such a point that when the armature and this arm are drawn downward the pawl will engage the teeth R of awheel which is mounted upon a shaft so as to be in proper position for this purpose. Upon the shaft of this wheel is a beveled pinion, which engages another pinion upon a shaft, S, so as to rotate the latter when the wheel is in motion. A spurgear, T, upon the end of this shaft enga-ges a similar gear, U, upon the shaft V, and this shaft in turn carries a partial or mutilated Above this is anotherl gear-wheel, X, upon the shaft Y, which is so placed as to be engaged by the partial gear XV when it turns around. A wheel or IOO drum is fixed to the shaft Y, having ten indicating-faces, Z. rlhis drum is inclosed in' a casing having an opening upon one sido, through which the plates may be exposed as they are brought opposite the opening, the others being all concealed within the casing. These plates may be marked from one-tenth to .ten-tenths, or from one to ten, or other numbers, as it may be desired.

The operation will then be as follows: The number of teeth in the partial gearing W are sufficient to make one-tenth of a revolution of the drum having the faces Z at the time when this gearing engages with the gearing X of the drum; consequently it will bring one of the' plates or faces Z to a point opposite the opening at each time when it makes a revolution. A series of drums are mounted upon the same Stationary shaft with this first one, which may indicate units, tens, hundreds, thousands, &c., and each of them is moved forward one point at each complete revolution of the cylinder preceding it, and by which it is operated. Upon the end of the iirst drum is fixed a rod, c, which slides toward the periphery of the drum through guides b. A spring, c, acts to force the rod inward toward the center, and it has a head upon it which rest-s upon the exte rior face of a cam, d, which is secured to the shaft upon which the cylinders are loosely supported. When the projecting or elevated portion of the cam d arrives at a point beneath the rod a, it forces it outward. The outer end ofthe rod has an arm or lug, a', projecting at right angles from it, and when the rod has been forced toward the periphery ofthe drum it will engage with one of a series of ten pins, e. which are fixed inside of the periphery of the succeeding drum. Having engaged this pin, the cylinder from which the pin projects will be carried along wit-h the arm auntil the latter passes over the high portion of the cam and drops back again, so as to withdraw it and take the projection a out of contact with the piu e. This allows the cylinder to remain at rest untilthe preceding cylinder has made another revolution, when it will be moved forward, so as to exhibit another plate or index.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

der, a cylinder of less diameter within the revolving cylinder, suitable contact-plates, and gearing whereby the interior cylinder is rotated at a speed different from that of the ex terior cylinder, substantially as set forth.

3. A stationary bearing-shaft having the insulated wires passing through its interior, an intermediate non-conducting cylinder having a conducting-plate fixed to one side, so as to make connection between the ends of the wires whenever it arrives in contact with them, and an exterior revolving cylinder with wings or means for producing revolution, substantially as herein described.

4. The exterior cylinderwith its wings or vanes, the interior non-conducting cylinder having the conducting-plate fixed in one side, so as to make and break connection between the wires which are brought to it through the non-conducting and stationary central shaft, in combination with the gears E, G, and I,where by the rate of rotation of theinner cylinder is determined, substantially as herein described.

5. A rotating cylinder and a means for making and breaking the electrical circuit, an electro-magnet with an armature, a pawl connected with said armature, and a toothed wheel which is operated by said pawl by the movement of the armature to and from the magnet, in combination with gears T, U, IV, and X, and intermediate gearing, whereby the indicators are operated, substantially as herein described.

In witness whereof I have hereunto set my hand.

BERNARD FAYMONVILLE.

Witnesses:

H. S. BALL, H. J. LIND. 

